\pgfplotsset{
        cycle list={blue,mark=none\\},
        }

\pgfplotsset{
        cycle list={blue,mark=none\\},
        }

\pgfplotsset{
        cycle list={blue,mark=none\\},
        }

\pgfplotsset{
        cycle list=[blue,mark=none\\],
        }

        \\{
        \\[
        \begin{verbatim}
                    \\}
  LTXIN-DOUBLEBACKSLASH
        \end{verbatim}
